High-performance capacitive touchscreens to replace resistive solution for single-layer touchscreen sensors
May 16, 2011 // Paul Buckley
Cypress Semiconductor Corp., has unveiled a new feature for its TrueTouch touchscreen controllers that enables manufacturers of handsets, cameras, GPS systems and other mobile systems to offer the benefits of capacitive touchscreens at resistive touchscreen costs.
The new feature available for Cypress's CY8CTST241 (single-touch with one-finger gestures) and CY8CTST242 (adds limited two-finger gestures such as “pinch” and “zoom”) delivers high performance touchscreen accuracy and responsiveness with a true single-layer sensor panel, reducing the cost of the most expensive component of the touchscreen.
Increasingly, capacitive touchscreens are viewed as a differentiator by buyers of new mobile devices. Capacitive advantages over resistive touchscreens include a more intuitive user experience, better transmissivity, lower power, increased reliability and better durability. Many lower-priced “feature phones” do not offer capacitive touchscreens today because of the cost. The new TrueTouch single-layer sensor opens up new “feature phones” and lower-cost smartphones to capacitive touchscreens, especially in major markets such as China and India.
Traditional capacitive touchscreens use a two-layer sensor to deliver the accuracy and linearity required for today's user experience. Cypress has developed proprietary algorithms that interface with a true single-layer sensor with no bridges to deliver two-layer performance for an unparalleled combination of user experience and cost sensitivity. The removal of this second sensor layer can save mobile device manufacturers 30 percent or more on sensor costs, and is available today for glass and film. Even with only one sensor layer, the TrueTouch solution claims to deliver accuracy better than 1.25 mm, excellent signal-to-noise ratios, fast response times (80 Hz), and best-in-class active power of 3.6 mW.
The CY8CTST241 and CY8CTST242 are available today for lead customers.
More information about the TrueTouch solution is available at
Xray sensor startup raises funds
May 27, 2015
MultiX SA (Paris, France), a company developing sensors for spectroscopic Xray imaging for airport security and non-destructive ...
IoT is driving an analog opportunity
Implanted biosensor can be wirelessly charged
Pushing emulation beyond functional tests
Sensor choices power industrial Internet innovation
Software collaboration enables software quality compliance
May 26, 2015
Lauterbach's TRACE32 debug solution has been integrated with test automation platform VectorCAST to enable development, test, ...
Why NOW is the time to invest in security
eDP: the next rung on display control's evolutionary ladder
Daimler, Qualcomm announce strategic partnership
- Integrating GPS into consumer products
- Controlling LED Lighting Using Triacs and Quadracs
- Automotive Designs Demand Low EMI Synchronous Buck Converters
- Smart Capacitive Design Tips
InterviewCEO interview: What's next after Tower's turn-around?
May 2015 marks the tenth anniversary of Russell Ellwanger taking over as CEO of speciality foundry Tower Semiconductor Ltd. (Migdael Haemek, Israel), which now trades as TowerJazz. And so EE Times Europe ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
In this month's reader offer, Analog Devices is giving away five Blackfin Low-Power Imaging Platform (BLIP) Development Systems (ADZS-BF707-BLIP2), worth 199 dollars each, for EETimes Europe's readers to win.
Targeting demanding ultra-low-power, real-time applications for image sensing and advanced audio, the development platform leverages the company’s ADSP-BF707BBCZ-4 Blackfin processor as...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.